Carbamazepine, a sodium channel blocker, is an anticonvulsant drug.; Target: Sodium channel; Carbamazepine inhibits the binding of [3H]batrachotoxinin A 20-?-benzoate (BTX-B) to a receptor site of voltage-sensitive sodium channel with IC50 of 131 ?M, to decrease the activation of sodium channel ion flux in rat brain synaptosomes. MedChem ExpressHY-B0246